<?php
namespace common\models;

use common\config\RolesConf;
use common\models\customer\UserRole;
use Yii;
use yii\base\NotSupportedException;
use yii\behaviors\TimestampBehavior;
use yii\web\IdentityInterface;

/**
 * User ActiveRecord model.
 *
 * @property bool    $isAdmin
 * @property bool    $isBlocked
 * @property bool    $isConfirmed
 *
 * Database fields:
 * @property integer $id
 * @property string  $username
 * @property string  $email
 * @property string  $unconfirmed_email
 * @property string  $password_hash
 * @property string  $auth_key
 * @property integer $registration_ip
 * @property integer $confirmed_at
 * @property integer $blocked_at
 * @property integer $created_at
 * @property integer $updated_at
 * @property integer $flags
 *
 * Defined relations:
 *
 * Dependencies:
 *
 * @author Dmitry Erofeev <dmeroff@gmail.com>
 */
class User extends BaseActiveRecord implements IdentityInterface
{
    const STATUS_DELETED = 0;
    const STATUS_ACTIVE = 10;

    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return '{{%user}}';
    }

    /**
     * @inheritdoc
     */
    public function behaviors()
    {
        return [
            TimestampBehavior::className(),
        ];
    }

    /**
     * @return array
     */
    public function rules()
    {
        return [
            // username rules
            'usernameRequired' => ['username', 'required', 'on' => ['register', 'create', 'connect', 'update']],
            'usernameLength'   => ['username', 'string', 'min' => 3, 'max' => 255],
            'usernameUnique'   => ['username', 'unique', 'message' => Yii::t('user', 'This username has already been taken')],
            'usernameTrim'     => ['username', 'trim'],

            // email rules
            'emailRequired' => ['email', 'required', 'on' => ['register', 'connect', 'create', 'update']],
            'emailPattern'  => ['email', 'email'],
            'emailLength'   => ['email', 'string', 'max' => 255],
            'emailUnique'   => ['email', 'unique', 'message' => Yii::t('user', 'This email address has already been taken')],
            'emailTrim'     => ['email', 'trim'],

            // password rules
            'passwordRequired' => ['password', 'required', 'on' => ['register']],
            'passwordLength'   => ['password', 'string', 'min' => 6, 'on' => ['register', 'create']],
        ];
    }

    /**
     * @inheritdoc
     */
    public static function findIdentity($id)
    {
        return static::findOne(['id' => $id, 'status' => self::STATUS_ACTIVE]);
    }

    /**
     * @inheritdoc
     */
    public static function findIdentityByAccessToken($token, $type = null)
    {
        throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
    }

    /**
     * Finds user by username
     *
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username)
    {
        return static::findOne(['username' => $username, 'status' => self::STATUS_ACTIVE]);
    }

    /**
     * Finds user by password reset token
     *
     * @param string $token password reset token
     * @return static|null
     */
    public static function findByPasswordResetToken($token)
    {
        if (!static::isPasswordResetTokenValid($token)) {
            return null;
        }

        return static::findOne([
            'password_reset_token' => $token,
            'status' => self::STATUS_ACTIVE,
        ]);
    }

    /**
     * Finds out if password reset token is valid
     *
     * @param string $token password reset token
     * @return bool
     */
    public static function isPasswordResetTokenValid($token)
    {
        if (empty($token)) {
            return false;
        }

        $timestamp = (int) substr($token, strrpos($token, '_') + 1);
        $expire = Yii::$app->params['user.passwordResetTokenExpire'];
        return $timestamp + $expire >= time();
    }

    /**
     * @inheritdoc
     */
    public function getId()
    {
        return $this->getPrimaryKey();
    }

    /**
     * @inheritdoc
     */
    public function getAuthKey()
    {
        return $this->auth_key;
    }

    /**
     * @inheritdoc
     */
    public function validateAuthKey($authKey)
    {
        return $this->getAuthKey() === $authKey;
    }

    /**
     * Validates password
     *
     * @param string $password password to validate
     * @return bool if password provided is valid for current user
     */
    public function validatePassword($password)
    {
        return Yii::$app->security->validatePassword($password, $this->password_hash);
    }

    /**
     * Generates password hash from password and sets it to the model
     *
     * @param string $password
     */
    public function setPassword($password)
    {
        $this->password_hash = Yii::$app->security->generatePasswordHash($password);
    }

    /**
     * Generates "remember me" authentication key
     */
    public function generateAuthKey()
    {
        $this->auth_key = Yii::$app->security->generateRandomString();
    }

    /**
     * Generates new password reset token
     */
    public function generatePasswordResetToken()
    {
        $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
    }

    /**
     * Removes password reset token
     */
    public function removePasswordResetToken()
    {
        $this->password_reset_token = null;
    }

}
